Analysis

  • max time kernel
    117s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-11-2022 03:31

General

  • Target

    ebd8e072fe8d39bf85d0e2f87f625a6dfa2424878541e36351db76c49793acf6.exe

  • Size

    792KB

  • MD5

    e28c92d67de5b0e50656cd64bc43d609

  • SHA1

    ae111a18223d9c9b84b3d46b58b383edd17b7d78

  • SHA256

    ebd8e072fe8d39bf85d0e2f87f625a6dfa2424878541e36351db76c49793acf6

  • SHA512

    8b2b12774d0331ca79cba352526d80f89f677152f01928273f3cbb6b1b71aa0c533b1fce443219e2a0d29c01386732e2f61db61175902f4b357f698983b2489c

  • SSDEEP

    12288:aBVHNGqHUlBzqmYNGWEwoBSWkavXhjm+H0xA9HZdSVjvF12td24bhy4Lwg+W:07jHU/hYNGqoBddqy9HZkVjS2Chy4sM

Malware Config

Extracted

Family

djvu

C2

http://fresherlights.com/test1/get.php

Attributes
  • extension

    .bowd

  • offline_id

    oHp5e4SJxdFtxfvKYmeX06F4C5cn0EcsF5Ak9Wt1

  • payload_url

    http://uaery.top/dl/build2.exe

    http://fresherlights.com/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-dyi5UcwIT9 Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0594Jhyjd

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 10 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 3 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ebd8e072fe8d39bf85d0e2f87f625a6dfa2424878541e36351db76c49793acf6.exe
    "C:\Users\Admin\AppData\Local\Temp\ebd8e072fe8d39bf85d0e2f87f625a6dfa2424878541e36351db76c49793acf6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5040
    • C:\Users\Admin\AppData\Local\Temp\ebd8e072fe8d39bf85d0e2f87f625a6dfa2424878541e36351db76c49793acf6.exe
      "C:\Users\Admin\AppData\Local\Temp\ebd8e072fe8d39bf85d0e2f87f625a6dfa2424878541e36351db76c49793acf6.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1328
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\f88d01bb-ae47-46e5-874a-e4539f8ce0f0" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2024
      • C:\Users\Admin\AppData\Local\Temp\ebd8e072fe8d39bf85d0e2f87f625a6dfa2424878541e36351db76c49793acf6.exe
        "C:\Users\Admin\AppData\Local\Temp\ebd8e072fe8d39bf85d0e2f87f625a6dfa2424878541e36351db76c49793acf6.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3424
        • C:\Users\Admin\AppData\Local\Temp\ebd8e072fe8d39bf85d0e2f87f625a6dfa2424878541e36351db76c49793acf6.exe
          "C:\Users\Admin\AppData\Local\Temp\ebd8e072fe8d39bf85d0e2f87f625a6dfa2424878541e36351db76c49793acf6.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4924
          • C:\Users\Admin\AppData\Local\0b79624a-54d3-4831-8a1c-f69f40a6c555\build2.exe
            "C:\Users\Admin\AppData\Local\0b79624a-54d3-4831-8a1c-f69f40a6c555\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:488
            • C:\Users\Admin\AppData\Local\0b79624a-54d3-4831-8a1c-f69f40a6c555\build2.exe
              "C:\Users\Admin\AppData\Local\0b79624a-54d3-4831-8a1c-f69f40a6c555\build2.exe"
              6⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:2900
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\0b79624a-54d3-4831-8a1c-f69f40a6c555\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4436
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:1868
          • C:\Users\Admin\AppData\Local\0b79624a-54d3-4831-8a1c-f69f40a6c555\build3.exe
            "C:\Users\Admin\AppData\Local\0b79624a-54d3-4831-8a1c-f69f40a6c555\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1272
            • C:\Windows\SysWOW64\schtasks.exe
              /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
              6⤵
              • Creates scheduled task(s)
              PID:312
  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:4244
    • C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
      2⤵
      • Creates scheduled task(s)
      PID:2680

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • C:\ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • C:\ProgramData\sqlite3.dll

    Filesize

    1.1MB

    MD5

    1f44d4d3087c2b202cf9c90ee9d04b0f

    SHA1

    106a3ebc9e39ab6ddb3ff987efb6527c956f192d

    SHA256

    4841020c8bd06b08fde6e44cbe2e2ab33439e1c8368e936ec5b00dc0584f7260

    SHA512

    b614c72a3c1ce681ebffa628e29aa50275cc80ca9267380960c5198ea4d0a3f2df6cfb7275491d220bad72f14fc94e6656501e9a061d102fb11e00cfda2beb45

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    Filesize

    2KB

    MD5

    bf72e427cb37a9eea765a22bd913f4a9

    SHA1

    65472f30a9b5e73ab656b220200c08d80aa102f5

    SHA256

    0bb3634c75731c7e50568ec1b894ce832b3a3b42990909c2bb6230c34756b1cc

    SHA512

    681d5f0ef428c2dcb175ac1f4f1c6f944401fbee2eb5932973e47ab05f9a9c55fbbfa8dd6a57ec623cc6c759a743f4c532195eaf9561e6b1e536e7181bf9d140

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

    Filesize

    1KB

    MD5

    136889ac23008bfdfefb91c9e5d8a11d

    SHA1

    8343b8ef34dc565eda256e042b43064cb8017131

    SHA256

    35188ecd41bd046f9f71e26f5404d5406be5e20bf8f2b6963adaec084783bef5

    SHA512

    b19722ef132c9169aa442b87f633f915934a51ea4164c674864aaffe4b01dd7ad6b7488450ca14b6d1467eb231e6941cad0aab29733ae4fa6b7df7d2a2f75bdb

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    Filesize

    488B

    MD5

    7b0ccac9a9a7ae0c91ef27ecdc92a767

    SHA1

    a45e3070c213db14f29dae37bd95c6e13f9c629f

    SHA256

    4e13f7635f3e278486da1e7b1bae8649819267ed3d7d17d267acf153c6de984b

    SHA512

    507e7a50f3a5ec6178402af153aa2892c9942e0dec0fa8de425e955dfcb83c9d4b0ec31d1769beecbc119e335daf956b6708f954d6daa9bc9587f5f9cee716cc

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

    Filesize

    482B

    MD5

    7e95954fffb48f97b45cba29817405d7

    SHA1

    658752d1c297e283195fbe0b03d89dce02ce5a21

    SHA256

    11b91ee597676b5f62e073ce109d3b5156b854c5bd136085c9be8bc9c1b39f6f

    SHA512

    c39da26ba5cefd192115928828be5980a275a1983196f30b46778554feab8041687ca0d0cbea6c47f1247801e45d74e322a15e46f0b2edaa18e6e3ced05c0d86

  • C:\Users\Admin\AppData\Local\0b79624a-54d3-4831-8a1c-f69f40a6c555\build2.exe

    Filesize

    323KB

    MD5

    efcd4db108fc262b0fba4f82692bfdf1

    SHA1

    5cc11f23b251c802e2e5497cc40d5702853e4f16

    SHA256

    1aacaadce5954ff321f06df9cf1785902ef0b1806599b8b0aa477ae211ff2976

    SHA512

    6c6cfe51f2686d26477934efe52a861c5a7bbd1baa4edac087c49058bca51d43b5be1214e22761ae63e98cd3e78c8aef51571835ac8e009cdc70c56439f2d15e

  • C:\Users\Admin\AppData\Local\0b79624a-54d3-4831-8a1c-f69f40a6c555\build2.exe

    Filesize

    323KB

    MD5

    efcd4db108fc262b0fba4f82692bfdf1

    SHA1

    5cc11f23b251c802e2e5497cc40d5702853e4f16

    SHA256

    1aacaadce5954ff321f06df9cf1785902ef0b1806599b8b0aa477ae211ff2976

    SHA512

    6c6cfe51f2686d26477934efe52a861c5a7bbd1baa4edac087c49058bca51d43b5be1214e22761ae63e98cd3e78c8aef51571835ac8e009cdc70c56439f2d15e

  • C:\Users\Admin\AppData\Local\0b79624a-54d3-4831-8a1c-f69f40a6c555\build2.exe

    Filesize

    323KB

    MD5

    efcd4db108fc262b0fba4f82692bfdf1

    SHA1

    5cc11f23b251c802e2e5497cc40d5702853e4f16

    SHA256

    1aacaadce5954ff321f06df9cf1785902ef0b1806599b8b0aa477ae211ff2976

    SHA512

    6c6cfe51f2686d26477934efe52a861c5a7bbd1baa4edac087c49058bca51d43b5be1214e22761ae63e98cd3e78c8aef51571835ac8e009cdc70c56439f2d15e

  • C:\Users\Admin\AppData\Local\0b79624a-54d3-4831-8a1c-f69f40a6c555\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\0b79624a-54d3-4831-8a1c-f69f40a6c555\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\f88d01bb-ae47-46e5-874a-e4539f8ce0f0\ebd8e072fe8d39bf85d0e2f87f625a6dfa2424878541e36351db76c49793acf6.exe

    Filesize

    792KB

    MD5

    e28c92d67de5b0e50656cd64bc43d609

    SHA1

    ae111a18223d9c9b84b3d46b58b383edd17b7d78

    SHA256

    ebd8e072fe8d39bf85d0e2f87f625a6dfa2424878541e36351db76c49793acf6

    SHA512

    8b2b12774d0331ca79cba352526d80f89f677152f01928273f3cbb6b1b71aa0c533b1fce443219e2a0d29c01386732e2f61db61175902f4b357f698983b2489c

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • memory/488-161-0x0000000000878000-0x00000000008A5000-memory.dmp

    Filesize

    180KB

  • memory/488-162-0x0000000002200000-0x0000000002259000-memory.dmp

    Filesize

    356KB

  • memory/1328-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1328-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1328-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1328-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1328-136-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2900-157-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2900-160-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2900-173-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2900-159-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2900-163-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/3424-146-0x0000000004909000-0x000000000499B000-memory.dmp

    Filesize

    584KB

  • memory/4924-171-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4924-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4924-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4924-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5040-135-0x000000000490A000-0x000000000499C000-memory.dmp

    Filesize

    584KB

  • memory/5040-137-0x0000000004A20000-0x0000000004B3B000-memory.dmp

    Filesize

    1.1MB